Update SPORE protocols to use new ticket mechanism:

- Use builtin Ticket type instead of user type
- Remove remark that -m2 matching is required as it no longer is

spdl/SPORE/ksl.spdl

@@ -5,11 +5,11 @@
 #
 # Note:
 # This protocol uses a ticket so scyther will only be able to verify
-# the protocol using the ARACHNE engine (-a) and type 2 matching (-m2)
+# the protocol using the ARACHNE engine (-a)
 #
 
 
-usertype Server, SessionKey, GeneralizedTimestamp, Ticket, TicketKey;
+usertype Server, SessionKey, GeneralizedTimestamp, TicketKey;
 secret k: Function;
 
 const a, b, e: Agent;